D-Wave Quantum (NYSE: QBTS) has delivered a staggering share price gain of approximately 13x over the past three years, prompting serious questions about whether today’s valuation is sustainable.

The dramatic run has put fresh focus on how much of that price appreciation is genuinely supported by the assets recorded on the company’s balance sheet.

At the heart of the debate is the price-to-book ratio, a metric that carries particular weight for D-Wave given that the company remains firmly in loss-making territory.

D-Wave currently trades at a P/B ratio of 4.6x, sitting above the software industry average of approximately 2.7x but well below the narrower peer group average of around 15.2x.

That positioning suggests the stock commands a meaningful premium over the typical software company balance sheet, while still trading at a discount relative to its closest quantum computing peers.

Recent commercial developments, including an extended manufacturing agreement with SkyWater and new partnerships in supply chain and quantum simulation, may be supporting investor confidence in the company’s future commercialization prospects.

The extended SkyWater agreement in particular provides greater visibility into how D-Wave plans to deploy its equity base to fund and support its hardware development roadmap going forward.

However, paying 4.6x book value still means investors are assigning a significant premium to each dollar of assets recorded on the balance sheet, at a time when cash needs remain substantial.

The central question for investors is whether that premium over the broader software sector can be justified when weighed against the company’s ongoing losses, capital requirements, and the current stage of its commercial pipeline.

Community analysis on the Simply Wall St platform has flagged one particularly bullish narrative on D-Wave, describing how “through a massive $550 million acquisition, a record-breaking month of sales, and a newly fortified balance sheet, D-Wave has moved the ‘Quantum Era’ off the whiteboards and into the executive boardroom.”

That narrative positions D-Wave shares as potentially 67% undervalued at current levels, representing a sharply different conclusion from those focused purely on near-term book value metrics.

The divergence between bearish valuation concerns and bullish commercial momentum narratives illustrates just how contested D-Wave’s fair value remains among market participants.

With the stock down more than 10% in recent trading, the market appears to be reassessing how much future promise is already priced into shares following their extraordinary multi-year climb.